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Data Services Products:
EMC-DesktopTools
IRIS EMC - Desktop Tools

Summary

The contributed Earth models to EMC are available for download from the model overview pages or IRIS’ Searchable Product Depository (SPUD) in netCDF (network Common Data Form) format. These models are compatible with those desktop visualization systems that support netCDF data files. This page provides a short introduction on installation and model loading for some free Java-based desktop applications that allow 3-D visualization of complex solid earth data.

The IRIS Earth Model Collaboration (EMC) 3D Visualizer

The UNAVCOGEON Integrated Data Viewer (IDV)

The UNAVCOGEONIDV is a free Java-based desktop application that allows 3-D visualization of complex solid earth data. EMC’s netCDF Earth model data files are GEONIDV compatible and IDV could be used to make complex visualization of EMC’s Earth models, including:

6. select the display type from the Displays panel and click on the Create Display button

7. the selected display is now plotted and could be tuned using IDV’s Dashboard controls

Man computer Interactive Data Access System (McIDAS-V)

McIDAS-V is a free Java-based desktop application built on VisAD and Unidata’s IDV and incorporates the functionality of McIDAS-X and HYDRA for viewing data, developing algorithms, and validating results

6. select field, display type, level and region from the Field Selector panel and click on the Create Display button

7. tune the display parameters using the Layer Controls panel

8. selected map is now displayed and you may work with it using the McIDAS-V controls

Parallel Visualization Application (ParaView)

ParaView is a public domain multi-platform data analysis and visualization application built on a library called the Visualization Tool Kit (VTK ). EMC’s netCDF model files are not directly compatible with ParaView package but Pavlis et al. (2012) provide a set of data files that are referenced in a common coordinate system so they can be viewed together in true 3D geometry using ParaView. This bundle also includes coastline, geographic boundary, and topography data that can be used to provide a geographic reference.

Map above, Pavlis et al. (2012) , is a basemap display using ParaView that shows geometry of the cross-section CC’ (images below the map) with its trajectory illustrated with a dashed, orange line with label CC’. The figure is a 3D projection looking radially downward from a point near the center of the scene. The map base shows topography colored by elevation with coastline data (light blue lines) and state and national boundaries (red lines) overlain. The magenta lines are the projection of flow lines on the top of the single surface slab model described in the text. The dashed white lines are backward projected flow lines related to this surface. They heavy white line shows an approximation of the upper limit of the Farallon slab (upper limit of slab window) using this 3D model of the surface. The time shown is time since termination of subduction by passage of the triple junction.

To view these files in ParaView:

3. launch ParaView
4. click File -> Open and navigate to the location you stored the supplement files
5. from the ImageVolumes of the supplement bundle select the .vts file associated with one of the models
6. click OK
7. click blue Apply